Engine Controls - Tests W/Codes
- Introduction
- Self-Diagnostic System
- Diagnostic Tests
- * Please Read First *
- DTC P0101 (QA_R): Mass Airflow (MAF) Sensor Circuit Range/Performance Problem
- DTC P0102 (QA_Low): Mass Airflow (MAF) Sensor Circuit Low Input
- DTC P0103 (QA_Hi): Mass Airflow (MAF) Sensor Circuit High Input
- DTC P0106 (P_R): Pressure Sensor Circuit Range/Performance Problem
- DTC P0107 (P_Slow): Pressure Sensor Circuit Low Input
- DTC P0108 (P_SHI): Pressure Sensor Circuit High Input
- DTC P0116 (TW_Low): ECT Sensor Circuit Low Input (Legacy)
- DTC P0117 (TW_Low): ECT Sensor Circuit Low Input (Forester & IMPREZA)
- DTC P0117 (TW_Hi): ECT Sensor Circuit High Input (Legacy)
- DTC P0118 (TW_Hi): ECT Sensor Circuit High Input (Forester & IMPREZA)
- DTC P0121 (Th_R): Throttle Position (TP) Sensor Circuit Range/Performance Problem
- DTC P0122 (THV_Low): TP Sensor Circuit Low Input
- DTC P0123 (THV_Hi): TP Sensor Circuit Low Input
- DTC P0125 (TW_Cl): Insufficient Engine Coolant Temperature For Closed Loop Fuel Control
- DTC P0130 (FO2_V): Front O2S Circuit Malfunction
- DTC P0133 (FO2_R): Front O2S Circuit Slow Response
- DTC P0135 (FO2H): Front O2S Heater Circuit Malfunction
- DTC P0136 (RO2_V): Rear O2S Circuit Malfunction
- DTC P0139 (RO2_R): Rear O2S Circuit Slow Response
- DTC P0141 (RO2_H): Rear O2S Heater Circuit Malfunction
- DTC P0170 (Fuel): Fuel Trim Malfunction
- DTC P0181 (TNKT-F): Fuel Temperature Sensor A Circuit Range/Performance
- DTC P0182 (TNKT_Low): Fuel Temperature Sensor A Circuit Low Input
- DTC P0183 (TNKT_Hi): Fuel Temperature Sensor "A" Circuit High Input
- DTC P0261, DTC P0264, DTC P0267 & DTC P0270: Fuel Injector Circuit Low Input
- DTC P0262, P0265, P0268 Or P0271: Fuel Injector Circuit High Input
- DTC P0301-DTC P0304: Cylinder Misfire Detected
- DTC P0325 (Knock): Knock Sensor 1 (KS) Circuit Malfunction
- DTC P0335 (Crank): Crankshaft Position (CKP) Sensor Circuit Malfunction
- DTC P0336 (Crank_R): Crankshaft Position (CKP) Sensor Range/Performance Problem
- DTC P0340 (Cam): Camshaft Position (CMP) Sensor Circuit Malfunction
- DTC P0341 (Cam_R): Camshaft Position (CMP) Sensor Range/Performance Problem
- DTC P0400 (EGR): EGR Flow Malfunction
- Confirmation Of Actual Driving Pattern
- DTC P0403 (ERGSOL): EGR Circuit Low Input
- DTC P0420 (Cat): Catalyst System Efficiency Below Threshold
- DTC P0440 (EVAP): EVAP Emission Control System
- DTC P0441 (CPC_F): EVAP Emission Control System Incorrect Purge Flow
- DTC P0443 (CPC): EVAP Emission Control System Purge Control Valve Circuit Low Input
- DTC P0446 (VCMSOL_Low): EVAP Emission Control System Vent Control Low Input
- DTC P0451 (TNKP_F): EVAP Emission Control System Pressure Sensor Range/Performance
- DTC P0452 (TNKP_Low): EVAP Emission Control System Pressure Sensor Low Input (Forester & 2.5L IMPREZA)
- DTC P0452 (TNKP_Low): EVAP Emission Control System Pressure Sensor Low Input (Legacy & 2.2L IMPREZA)
- DTC P0453 (TNKP_Hi): EVAP Emission Control System Pressure Sensor High Input (All Except Legacy)
- DTC P0453 (TNKP_Hi): EVAP Emission Control System Pressure Sensor High Input (Legacy)
- DTC P0461 (FLVL_R): Fuel Level Sensor Circuit Range/Performance Problem
- DTC P0462 (FLVL_Low) : Fuel Level Sensor Circuit Low Input
- DTC P0463 (FLVL_Hi): Fuel Level Sensor Circuit High Input
- DTC P0480 Cooling Fan Relay No. 1 Low Input
- DTC P0483 Cooling Fan Function Problem
- DTC P0500 (VSP): Vehicle Speed Sensor (Forester & IMPREZA) (VSS) Malfunction
- DTC P0500 (VSP): Vehicle Speed Sensor (Legacy) (VSS) Malfunction
- DTC P0505 (ISC): Idle Control System Malfunction
- DTC P0506 (ISC_RLOW): Idle Control System Rpm Lower Than Expected
- DTC P0507 (ISC_RHI): Idle Control System Rpm Higher Than Expected
- DTC P0600: Serial Communication Link Malfunction
- DTC P0601 (Ram): Internal Control Module Memory Check Sum Error
- DTC P1100 (St_SWOFF): Starter Switch Circuit Low Input
- DTC P1101 (N_SWOFF): Neutral Position Switch Circuit Malfunction (A/T)
- DTC P1101 (N_SW): Neutral Position Switch Circuit Malfunction (M/T)
- DTC P1102 (BR): Pressure Sources Switching Solenoid Valve Circuit Low Input
- DTC P1103 (TRQ): Engine Torque Control Signal Circuit Malfunction
- DTC P1120 (St_SWON): Starter Switch Circuit High Input
- DTC P1121 (N_SWON): Neutral Position Switch Circuit Low Input (A/T)
- DTC P1122 (BR_Hi): Pressure Sources Switching Solenoid Valve Circuit High Input
- DTC P1141 (QA_RHI): Mass Airflow Sensor Circuit Range/Performance Problem (High Input)
- DTC P1142 (Th_RLOW): Throttle Position Sensor Circuit Range/Performance Problem (Low Input)
- DTC P1143 (PS_RLOW): Pressure Sensor Circuit Range/Performance Problem (Low Input)
- DTC P1144 (PS_RHI): Pressure Sensor Circuit Range/Performance Problem (High Input)
- DTC P1400 (PCVSOL_Lo): Fuel Tank Pressure Control Solenoid Valve Circuit Low Input
- DTC P1420 (PCVSOL_Hi): Fuel Tank Pressure Control Solenoid Valve Circuit High Input
- DTC P1421 (EGRSOL_Hi): Exhaust Gas RECIRCULATION Circuit High Input
- DTC P1422 (CPC_Hi): EVAP Emission Control Valve Circuit High Input
- DTC P1423 (VCMSOL_Hi): Evaporative Emission Control System Vent Control Circuit High Input
- DTC P1440 (PCV_Flow): Fuel Tank Pressure Control System Function Problem Low Input
- DTC P1441 (PCV_FHI): Fuel Tank Pressure Control System Function Problem High Input
- DTC P1442 (FLVL_R2): Fuel Level Sensor Circuit Range/Performance Problem 2
- DTC P1443 EVAP Vent Control Function Problem (2.2L IMPREZA & All Legacy Models)
- DTC P1507 (ISC_SHI): Idle Control System Malfunction (Fail-Safe)
- DTC P1520 (Fan_1HI): Radiator Fan Relay 1 Circuit High Input
- DTC P1540 (VSP_S): Vehicle Speed Sensor Malfunction 2
- Summary